Definition: In this task, you are given a text which is the body of a document. You are given a question and options. Pick the correct number. Don't generate anything else apart from the numbers provided in options.
Input: Context: Oenothera perennis is a species of herbaceous flowering plant native to the eastern United States and Canada. Its common names include little evening primrose small evening primrose and small sundrops.
Question: The document can be classified to which topic? 
Options: 1)Village, 2)Artist, 3)WrittenWork, 4)Plant

4